Thill-tug



PATBNTED FEB. 2. 1904.

8. H. FROST.

THILL TUG.

APPLIGATION FILED JUNE 9. 1903.

N0 MODEL.

. extension.

UNITED STATES Patented February 2, 1904.

PATENT OFFICE.

THILL-TUG.

SPECIFICATION forming'part of Letters Patent N0. 750,841, dated February2, 1904.

Application filed June 9, 1903. Serial No. 160,686. (No model.)

To a whmn it ntay concern.-

Be it known that I, SAMUEL H. FROs'r, a citizen of the United States,residing at Franklin, in the county of Norfolk and State ofMassachusetts, have invented certain new and useful Improvements inThill-Tugs; and I do hereby declare the following to be a full, clear,and exact description of the invention, such as will enable othersskilled in the art to which it appertains to make and use the same.

This invention relates to thill-tugs; and it consists in the novelconstruction and combination of the parts hereinafter fully describedand claimed.

Inthe drawings, Figure 1 is a front view of the fastening device orthill-tug. Fig. 2 is a side view of the same. Fig. 3 is a longitudinalsection through the fastening device, showing also the fastening-strapand the shaft.

A is a buckle provided with a pivoted tongue 0 for engaging with afastening-strap B, which forms a portion of the harness.

The buckle A has a hook-shaped extension (J, which has a forked endportion 0, and (Z is a cross-bar at the junction of the buckle with theThe cross-bar (Z has at its middle portion an upwardly-projecting pin 6,having a T-shaped head f. The hook-shaped extension C has also twooffset cross-bars E on its convex side.

F is a curved tongue which engages with the forked end portion 0. Oneend of this tongue is provided with a diagonally-inclined slot g, whichis slipped over the head f into engagement with the pin 6, and the otherend of the tongue is provided with an eye it. The diagonal slot g isslipped over the T-shaped head f of the pin when the tongue F is abovethe forked part c and turned around against one side of the part O, andthe tongue has to be raised and turned back to that position by handbefore it can be removed from the pin. When the strap breaks, the tongueF springs up, but it does not fall off and become lost, as has been thecase with devices of this sort as heretofore constructed.

H is a portion of one of the shafts by means of which the vehicle isdrawn along. The shaft is inserted in the hook-shaped extension of thebuckle under the tongue. One end of the strap B is passed through theeye it, so as to tighten the tongue upon the shaft; but any equivalentfastening-strap may be used instead of the strap B.

If preferred, the fastening strap or straps may be arranged as shown inthe Patent No.

716,024., issued to me on December 16, 1902.

What I claim i s- The combination, with a buckle having a hook-shapedextension provided with a forked end portion, and a cross-bar arrangedbelow the buckle and provided with an upwardly- I SAMUEL H. FROST.

Witnesses:

ALIcE J. MURRAY, FEEDK. K. DAGGETT.

